KEY POINTS
  • Vernon Unsworth, a British cave explorer who was assisting in the rescue of a Thai youth soccer team trapped in a cave, criticized Elon Musk's mini-submarine plan for being "not practical."
  • Musk went on a Twitter tirade against Unsworth calling him a "pedo guy," among other negative words.
  • Now Unsworth has retained a lawyer and is preparing a lawsuit.

Elon Musk's controversial tweets about one of the Thai youth soccer team rescuers may have him in legal hot water.

Vernon Unsworth, a British cave explorer who was assisting in the rescue of a Thai youth soccer team trapped in a cave in July, is preparing a civil complaint for libel against Musk, according to a letter to Musk from Unsworth's attorney sent to CNBC. The letter is dated Aug. 6.